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Results of Key Comparison on LS1P Microphones  

Suh Jae Gap (한국표준과학연구원 물리표준부 음향진동그룹)
Jho Moon Jae (한국표준과학연구원 물리표준부 음향진동그룹)
Kwon Hyu-Sang (한국표준과학연구원 물리표준부 음향진동그룹)
Suh Sang Joon (한국표준과학연구원 물리표준부 음향진동그룹)
Publication Information
The Journal of the Acoustical Society of Korea / v.24, no.4, 2005 , pp. 194-201 More about this Journal
Abstract
Since the necessity for the accurate measurement in the field of acoustics, vibration, and ultrasound was internationally increased, CCAUV (Consultative Committee for Acoustics , Ultrasound and Vibration) was created by the CIPM (International Committee for Weights and Measures) in 1998. One of the first activities of CCAUV is the key comparison on 1' standard microphones. The key comparison was done from April. 1999 to April. 2001 and 12 NMIs(National Metrology Institutes) including KRISS (Korea Research Institute of Standards and Science) were participated. The pilot laboratory was the National Physical Laboratory(NPL). The traveling standards were two LSIP(Laboratory Standard 1' Pressure Type) microphones specified in IEC 61094-1 and the calibration frequency ranges covers from 63Hz to 8kHz. In this paper, the analyzed results in the final report were summarized.
Keywords
Key Comparison; Standard Microphone; Reciprocity Calibration; Uncertainty; Pressure Sensitivity;
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  • Reference
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2 ISO 1993, Guide to the Expression of Uncertainty of Measurements
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6 R. Barham, 'Report on Key Comparison CCAUV.A-K1,' NPL Report CAIR 02, 2003